61753881 has 16 divisors (see below), whose sum is σ = 94361600. Its totient is φ = 35190288.

The previous prime is 61753871. The next prime is 61753889. The reversal of 61753881 is 18835716.

61753881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61753881 - 2⁵ = 61753849 is a prime.

It is a super-2 number, since 2×61753881² = 7627083637124322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61753889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4080 + ... + 11838.

It is an arithmetic number, because the mean of its divisors is an integer number (5897600).

Almost surely, 2^61753881 is an apocalyptic number.

It is an amenable number.

61753881 is a deficient number, since it is larger than the sum of its proper divisors (32607719).

61753881 is a wasteful number, since it uses less digits than its factorization.

61753881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148.

The product of its digits is 40320, while the sum is 39.

The square root of 61753881 is about 7858.3637609874. The cubic root of 61753881 is about 395.2647501398.

The spelling of 61753881 in words is "sixty-one million, seven hundred fifty-three thousand, eight hundred eighty-one".